Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475255Generated: October 29, 2026

N-methyl-2-pyrrolidone → HCID 71272391, compound

https://huagongshe.com/reaction/475255

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methyl-2-pyrrolidoneHCID 13387—
Reactant4-Bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazoleHCID 57474729—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
ProductHCID 71272391HCID 7127239175%

Reaction Conditions

Temperature85 °C

Reaction Steps

To a mixture of 196 (0.57 g, 2.05 mmol), Zn(CN)2 (264 mg, 2.25 mmol) in NMP (6 mL) under an argon atmosphere was added (Ph3P)4Pd(0) (356 mg, 0.31 mmol). The mixture was heated at 85° C. overnight, cooled, and partitioned between EtOAc (300 mL) and H2O (50 mL). The organic layer was separated and washed with brine, dried (MgSO4) and concentrated in vacuo. The residue was purified by SiO2 chromatography eluting with 1% MeOH/DCM to afford 430 mg (75%) of 1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-4-carbonitrile (198) as yellow solid: MS (ESI) m/z=228 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637537B2
Source datasetuspto-grants-2014_01
ORD IDord-73434ecbd7534df385ada9867b319574
Source noteuspto-grants-2014_01